Courteney Cox and Johnny McDaid have ended their relationship after more than a decade together, friends say.The split is described as amicable and follows years in which Cox, 62, built a life in Los Angeles and McDaid, 49, worked from London as a songwriter and member of Snow Patrol.Friends say McDaid is linked to a new partner while Cox has been seen with
Greg Kinnear and remains close to
David Arquette as they co-parent their daughter
Coco Arquette.